50results about How to "Stop the outflow" patented technology

A light emitting device includes a heat dissipation board, a wiring board that is bonded and fixed to the heat dissipation board and formed with a through-hole, a semiconductor light emitting element that is mounted on a face of the heat dissipation board, the face being exposed through the through-hole of the wiring board, and a light reflecting member that covers a portion of an inner peripheral wall surface of the through-hole of the wiring board, the portion being squarely opposed to a side surface of the semiconductor light emitting element.

The invention discloses polymer thermal stability detecting equipment and a polymer thermal stability detecting method. The inlet of a first group of constant speed displacement pump is connected to a first displacing fluid storage device; the outlet of the first group of constant speed displacement pump is connected to the inlet of a first intermediate container group; the outlet of the first intermediate container group is connected to the inlet of a homogeneous sand-filled pipe series group; the outlet of the homogeneous sand-filled pipe series group is connected to the inlet of a second intermediate container group; the outlet of the second intermediate container group is connected to the outlet of a second group of constant speed displacement pump; the inlet of the second group of constant speed displacement pump is connected to a second displacing fluid storage device; the homogeneous sand-filled pipe series group is placed in a temperature constant box; a porous medium short section is mounted between the inlet of the homogeneous sand-filled pipe series group and the outlet of the first intermediate container group. According to the polymer thermal stability detecting equipment and the polymer thermal stability detecting method, the influence on the assessment of polymer stability caused by the lack of combination of a plurality of actual conditions in the prior art is effectively solved, and the dynamic stability detection of a polymer solution is realized.

The invention provides a preparation method for a metal salt / gamma-Al2O3 heat accumulating type catalyst carrier. The preparation method comprises the following steps of: preparing macropore gamma-Al2O3 by adopting aluminum nitrate an aluminum source and modified polystyrene microballoon spheres as a template agent; and soaking the metal to a pore channel of the macropore gamma-Al2O3, thereby finally obtaining the heat accumulating type gamma-Al2O3. According to the obtained metal salt / gamma-Al2O3 heat accumulating type catalyst carrier disclosed by the invention, the metal salt is uniformly and sufficiently distributed in a porous netted structure alumina matrix; a phase-change heat accumulating material is divided into a plurality of micro heat accumulating type units by the alumina pore channel; and the micro heat accumulating units are further used for preventing the molten phase-change material from flowing outwards due to tension action of a capillary tube while improving heat absorption and heat release, thereby not affecting the performances of the catalytic material due to changes of the micro heat accumulating type units as well as the heat accumulation and the heat release.

The invention discloses an infusion bag matched for a safe drug infusion pump. The infusion bag comprises an infusion bag body, a pump pipe and an infusion catheter, wherein the tail end of the infusion catheter is connected with a combined joint which comprises a pressure control unit, a liquid storage device is arranged behind the pressure control unit, and a liquid control unit is arranged behind the liquid storage device and connected with a Luer joint; the pressure control unit comprises an inlet joint which is connected with the infusion catheter, a drainage port is formed in the rear part of the inlet joint and is covered with an elastic piece, and an outlet joint is arranged behind the drainage port; the liquid storage device comprises a liquid storage cavity which is communicated with the outlet joint; the liquid control unit comprises a main drainage port and an auxiliary drainage port on a liquid passage, and a covering part is arranged on the main drainage port and an auxiliary drainage port respectively. The infusion bag matched for the safe drug infusion pump is made from a non-PVC material, the liquid can be stopped automatically and effectively, excessive infusion can be prevented under the effect of gravity, the liquid can be supplied for a certain time after infusion, the effect for preventing blood return can be effectively realized, the structure is simple, and the operation is convenient.

The invention belongs to the technical field of pipeline crossing engineering, and particularly relates to a large-fall mountain directional drilling slurry plugging system and method and electronic equipment. The large-fall mountain directional drilling slurry plugging system and the method and the electronic equipment aim to solve the problem of poor slurry plugging effect in directional drilling crossing of the large-fall mountain. The system comprises a reaming assembly, a slurry plugging assembly and an auxiliary bearing assembly, and the auxiliary bearing assembly is arranged outside the reaming assembly to bear the reaming assembly; the reaming assembly comprises a reaming device and a drill rod; the slurry plugging assembly comprises an isolation sleeve and a rotary blowout preventer, the drill rod is sleeved with the isolation sleeve, one end of the isolation sleeve extends into a rock mass penetrating point, and the other end of the isolation sleeve extends in an overhanging mode; the rotary blowout preventer is arranged at the end part, away from the rock mass penetration point, of the isolation sleeve, and the rotary blowout preventer is hermetically connected with the isolation sleeve in an abutting mode through a connecting assembly; and a positioning assembly used for conducting center positioning on the drill rod is arranged inside the isolation sleeve. Effective water-proof plugging of the large-fall mountain can be achieved through the large-fall mountain directional drilling slurry plugging system and the method and the electronic equipment.

The invention discloses a wall pouring formwork. According to the technical scheme, the wall pouring formwork is characterized in that the wall pouring formwork comprises a formwork body and a sealingstrip arranged on the bottom edge of the formwork, and the sealing strip is made of flexible materials. The wall pouring formwork solves the problem of a rotten root phenomenon appearing in wall pouring.

The invention provides a preparation method for a metal salt / gamma-Al2O3 heat accumulating type catalyst carrier. The preparation method comprises the following steps of: preparing macropore gamma-Al2O3 by adopting aluminum nitrate an aluminum source and modified polystyrene microballoon spheres as a template agent; and soaking the metal to a pore channel of the macropore gamma-Al2O3, thereby finally obtaining the heat accumulating type gamma-Al2O3. According to the obtained metal salt / gamma-Al2O3 heat accumulating type catalyst carrier disclosed by the invention, the metal salt is uniformly and sufficiently distributed in a porous netted structure alumina matrix; a phase-change heat accumulating material is divided into a plurality of micro heat accumulating type units by the alumina pore channel; and the micro heat accumulating units are further used for preventing the molten phase-change material from flowing outwards due to tension action of a capillary tube while improving heat absorption and heat release, thereby not affecting the performances of the catalytic material due to changes of the micro heat accumulating type units as well as the heat accumulation and the heat release.

The invention discloses polymer thermal stability detecting equipment and a polymer thermal stability detecting method. The inlet of a first group of constant speed displacement pump is connected to a first displacing fluid storage device; the outlet of the first group of constant speed displacement pump is connected to the inlet of a first intermediate container group; the outlet of the first intermediate container group is connected to the inlet of a homogeneous sand-filled pipe series group; the outlet of the homogeneous sand-filled pipe series group is connected to the inlet of a second intermediate container group; the outlet of the second intermediate container group is connected to the outlet of a second group of constant speed displacement pump; the inlet of the second group of constant speed displacement pump is connected to a second displacing fluid storage device; the homogeneous sand-filled pipe series group is placed in a temperature constant box; a porous medium short section is mounted between the inlet of the homogeneous sand-filled pipe series group and the outlet of the first intermediate container group. According to the polymer thermal stability detecting equipment and the polymer thermal stability detecting method, the influence on the assessment of polymer stability caused by the lack of combination of a plurality of actual conditions in the prior art is effectively solved, and the dynamic stability detection of a polymer solution is realized.

A light emitting device includes a heat dissipation board, a wiring board that is bonded and fixed to the heat dissipation board and formed with a through-hole, a semiconductor light emitting element that is mounted on a face of the heat dissipation board, the face being exposed through the through-hole of the wiring board, and a light reflecting member that covers a portion of an inner peripheral wall surface of the through-hole of the wiring board, the portion being squarely opposed to a side surface of the semiconductor light emitting element.

The invention discloses a pneumatic double-storage-tank drainage controller, and belongs to the field of storage tank equipment in the chemical industry. The pneumatic double-storage-tank drainage controller is characterized in that a drain valve (71) is an air-to-open valve, and an air-to-close valve (72) is mounted on one side of the drain valve (71) in a serial connection manner; and a liquid level linkage device (5) extends out of a side wall of a sediment water storage tank (1) and is movably connected with a valve control device (4) by a rotary shaft (6), and the valve control device (4) is mounted on the outside of the sediment water storage tank (1), is connected with the drain valve (71) and the air-to-close valve (72) and can drive the drain valve (71) to be opened to drain water or drive the air-to-close valve (72) to be closed to prevent the water or media from flowing out respectively according to the liquid level of the inside of the sediment water storage tank (1). The pneumatic double-storage-tank drainage controller has the advantages that storage tanks can be automatically drained, the work efficiency is improved, a sealing effect is good, leakage of the media can be completely eradicated, and environments and the life safety of workers are protected.

An embodiment of the invention discloses an external pressure capillary electrophoresis interface device and a method of detecting a substance, wherein the device comprises: a capillary having an interface; a sample incoming end of the capillary is connected with a liquid storage bottle, a sample outgoing end of the capillary is connected with a detection module, a pressure application spatial structure is arranged outside the interface, the interface is communicated with the pressure application spatial structure, and a liquid inlet and a negative electrode are arranged in the pressure application spatial structure; a positive electrode is arranged in the liquid storage bottle. The external pressure capillary electrophoresis interface device according to the embodiment has the advantagesthat the pressure application spatial structure is added to the outside of the interface of the capillary, a buffered liquid that is pressurized is utilized, pressure can be applied to the interface to prevent a liquid under detection in the capillary from flowing out from the interface, and detection result accuracy is improved accordingly; the external pressure capillary electrophoresis interface device according to the embodiment has no need for sealing the interface with acetic cellulose, rigidity of capillary is ensured, and the problem of detection result inaccuracy due to the fact thata substance under detection adsorbs to the acetic cellulose can be avoided.

The invention discloses a wall pouring formwork. According to the technical scheme, the wall pouring formwork is characterized in that the wall pouring formwork comprises a formwork body and a sealingstrip arranged on the bottom edge of the formwork, and the sealing strip is made of flexible materials. The wall pouring formwork solves the problem of a rotten root phenomenon appearing in wall pouring.

The invention discloses a combined shaft seal at the front end of a marine motor, which is arranged at the front end of the motor and consists of a radial shaft seal and an axial shaft seal; The radial shaft seal at the left end is composed of the felt ring I embedded in the radial concave ring groove of the inner hole of the left end cover, which is located on the left side of the bearing and fits with the motor shaft clearance, and the outer wall of the motor shaft. The right end cover on the motor shaft The right side is equipped with an oil throwing ring that rotates with the motor shaft; the radial shaft seal at the right end is made of felt ring II embedded in the radial concave ring groove of the inner hole of the right end cover that is located on the right side of the bearing and fits with the motor shaft clearance, and the outer wall of the motor shaft. Matching structure; further improvement is: the right side of the right end cover is provided with an axial shaft seal formed by fitting the oil throwing ring and the axial concave ring groove of the right end cover. The double radial shaft seal and the axial shaft seal of the present invention form a combined shaft seal with good sealing performance.

The present invention relates to the technical field of municipal engineering, in particular to a quick desilting equipment for pipelines used in municipal engineering; the equipment includes: a base plate, a second drive motor, and an external thread rotating pipe; The connecting rod, the second sliding connecting rod, and the ends of the second sliding connecting rod and the first sliding connecting rod that are far away from each other are all hingedly equipped with a strip-shaped mud scraper, and the side of the long strip-shaped mud scraper away from the external threaded rotating pipe is fixed A guide block is installed; the sliding sleeve on the external thread rotating pipe is provided with a circular water retaining plate; under the mutual extrusion of the guide block and the sewage pipe, the present invention can automatically adjust according to the size and diameter of the circular sewage pipe; When the shaped mud scraper is locked, it can protect the strip shaped mud scraper and the driving motor, and at the same time, it can remove the silt on the inner wall of the circular sewage pipe; it is a simple and convenient rapid desilting equipment.

The invention discloses a die-casting part shaping and grinding device and relates to the field of die casting. The die-casting part shaping and grinding device comprises a liquid storage cavity. The top of the liquid storage cavity is fixedly provided with a platform. The top of the left side of the liquid storage cavity is fixedly provided with a rotary table. The top of the rotary table is fixedly connected with a bracket. A motor and a liquid spray cavity are fixedly mounted on the bracket. The right side of the motor is fixedly connected with a rotary shaft. The rotary shaft penetrates through the left sidewall of the liquid spray cavity to be fixedly connected with a rotary disk. The right side of the rotary disk is fixedly connected with a grinding disk. The grinding disk and the rotary disk are provided with a plurality of through holes. The bottom of the liquid spray cavity is fixedly connected with a liquid outlet pipe. The liquid outlet pipe penetrates through the bracket and the rotary table to extend to the bottom of an inner cavity of the liquid storage cavity. The upper portion of the liquid outlet pipe is fixedly provided with a liquid pump. The die-casting part shaping and grinding device can adjusting the angle of the grinding disk, can recover, filter and reutilize used grinding liquid, saves resources and is easy to apply and popularize.

The invention discloses a turbine guide bearing of a water turbine. The turbine guide bearing comprises a bearing body. The end of the bearing body is connected with a magnetofluid sealing device. The magnetofluid sealing device comprises an electromagnetic device and a bush which is arranged outside a large shaft of the water turbine in a sleeving mode and has magneto-conductivity. The electromagnetic device comprises a magnetic ring arranged outside the bush in a sleeving mode, an electromagnetic coil is wound on the magnetic ring, and annular magnetic poles are arranged at the two ends of the magnetic ring correspondingly. A gap is formed between the inner end surface of each magnetic pole and the bush, and oil-based nanometer Fe3O4 magnetic fluid is absorbed inside the gaps. By using the turbine guide bearing provided by the invention, contact sealing with the large shaft is realized, oil of the turbine guide bearing is prevented from flowing outwards, and outside water is prevented from flowing into the turbine guide bearing. Oil leakage at the end is avoided, the ecological environment is improved, oil loss is reduced, the cooling effect is ensured, and the bush temperature is stabilized. Water flowing along the large shaft or jetted water from a main shaft seal is prevented from entering the turbine guide bearing, the quality of lubricating oil is ensured, the operation cost is lowered, and the power generation quantity is improved. The invention further discloses the turbine comprising the turbine guide bearing.